I seem to have lost the drive to have sex since we had a baby about 16 months ago. My breasts seem more functional than erotic, and having pushed a baby out from down there, it's just not the same. How do you bring the passion back?

Although I don't have kids and may not understand what're you're going through, I hope that you're able to find the passion back so that your husband and you can have a great sex life again. It definitely takes time to get back into the mood again after giving birth, and you should not rush into anything if you don't feel comfortable. Go on dates with your husband to rekindle the spark in your marriage, or watch some sensuous movies together. If all else fails, you could try visiting a sex therapist as suggested by Samantha above. Take it slow if you must, I'm sure your husband wouldn't mind :) Good luck!